|Publication number||US4540098 A|
|Application number||US 06/655,232|
|Publication date||Sep 10, 1985|
|Filing date||Sep 28, 1984|
|Priority date||Sep 28, 1984|
|Publication number||06655232, 655232, US 4540098 A, US 4540098A, US-A-4540098, US4540098 A, US4540098A|
|Original Assignee||Sunbeam Plastics Corporation|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (35), Classifications (13), Legal Events (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This invention relates to screw-type closures for containers which are both child resistant and tamper indicating.
A variety of screw-type child proof or child resistant closures and containers have been provided which require two distinct operations to achieve opening. It is also desirable to have such closures be tamper proof or tamper indicating so that any attempt to open the container once it has been filled, is indicated by some means which can be readily observed. Also, it is desirable that the child resistant feature remains operable for repeated opening and closing whereas the tamper indicating arrangement is required to operate only the first time the container is opened.
It is an object of the invention to provide a child resistant tamper indicating closure.
The invention contemplates a child resistant tamper indicating package including a closure wherein a frangible, removable tamper indicating means is attached to the closure and engages a lock member on the threaded portion of the container to which the closure is preferably threadably attached. The closure is of the type that has a lock tab deflected radially outwardly upon radial inward squeezing of the cap at some predetermined diametrically opposed points circumferentially spaced from the lock tab so that the lock tab may pass lock members on the container for removal of the closure from the container. The tamper indicating means is frangible for removal from the closure and circumferentially spaced relative to the lock member whereby it is impossible to remove the closure without first removing the tamper indicating means. The tamper indicating means is a removable tab which acts to restrain the closure from clearing a ramp provided on the container. When the tamper indicating means is removed, the closure may be rotated for removal from the container. The removed tamper indicating tab alerts the vendor or purchaser of possible prior opening.
A preferred embodiment of the invention is disclosed in the drawings in which:
FIG. 1 is an exploded perspective view of a closure and container embodying the invention;
FIG. 2 is a partial sectional view of the closure and container;
FIG. 3 is a cross-sectional view taken on line 3--3 in FIG. 2; and
FIG. 4 is a cross-sectional view similar to FIG. 3 but showing another condition of operation.
The child resistant and tamper indicating closure and container arrangement 8 of the present invention includes a closure 10 and a container 12. The basic closure arrangement is of the child resistant type in that it requires two dissimilar motions in order to bring about a removal of the closure 10 from the container 12. In the present instance, the basic closure requires squeezing and simultaneous rotation of the closure in order to remove it from the container. Reapplication of the closure 10 to the container 12 is accomplished by a single form of motion, that is, by threading or rotating the cap onto the container.
In addition to the child resistant features, the closure 10 and container 12 include tamper indicating features in which a tamper indicating means indicated generally at 16 requires removal before the child resistant mechanism can be brought into operation. Absence of the tamper indicating means gives evidence that the container has previously been opened or at least put into a condition in which it could be opened.
The closure 10 is applied to the neck 18 of the container 12. The neck 18 forms an opening 20 surrounded a sealing lip 22. Screw threads 24 are formed on the exterior of the neck 18 and a lock member 26 is molded or formed integrally with the neck at a point immediately below the threads 24.
The basic closure portion for closing the opening 20 in the container 12 is formed by a cap portion 28. The cap portion 28 includes a disc-shaped top 30 having the inner wall or skirt 32 and a concentric outer wall or skirt 34. The walls 32 and 34 are spaced to form an annular groove 36. The inner wall 32 is provided with threads 36 which are complementary to the threads 24 on the closure neck 18 and are the means by which the closure 10 is maintained on the container 12.
The outer wall 34 of the cap portion 28 is provided with a lock element 40 which in the closed position of the cap portion 28 on the container 12 is circumferentially aligned with the lock member 26 so that unscrewing of opening rotation of the cap portion 28 is obstructed by the engagement of the lock member 26. To place the cap portion 28 in condition for removal, it is necessary to deflect the outer wall 34 radially inwardly. This is accomplished by squeezing the outer wall of the cap portion 28 at diametrically spaced points indicated at 44 in FIG. 4. This causes the lock elements 40 to flex radially outwardly an amount sufficient to clear the lock surface 42 so that the cap portion 28 can be rotated by maintaining a grip on the cap portion 28 at the squeeze points 44 and simultaneous rotation of the cap portion 28 it can be removed or unthreaded from the neck 18 of the container 12.
The cap portion 28 can be reapplied to the container 12 to close the opening 20 by simply rotation in a closing direction. During such rotation, the lock element 40 engages the cam surface 46 adjacent to the lock surface 42 on the lock member 26 to permit the lock element 40 to be deflected and to pass the lock member 26. When the cap portion 28 reaches its fully closed and sealed condition, the lock element 40 is circumferentially aligned with the lock surface 42 and opening movement will again require two dissimilar motions, namely, squeezing the cap portion 28 at diametrically spaced locations 44 and simultaneous rotation of the cap portion 28 in an opening direction.
The tamper indicating means 16 includes a tab element 50 which is detachably connected to the cap 28 by means of frangible webs or a line of weakening 52 to the bottom edge of the outer wall 34 and by a line of weakening 54 to one side edge of the lock element 40. The tab element 50 is provided with a grip portion 56 by which it is possible to hold the grip portion between the thumb and forefinger to remove the tab element 50 from the closure. The tab element 50 is disposed to one side of the lock element 40 in the direction of opening movement of the closure 10 relative to the container 12. When the closure 10 is in place on a container 12, the tab element 50 serves to maintain the lock element 40 circumferentially spaced from the lock surface 42 on the lock member 26. In that position, the squeeze points 44 are in a radial alignment with a pair of diametrically opposed ramps 60 formed on the neck 18. The ramps 60 engage the inner surface of the outer wall 34 to prevent radial inward deflection of the squeeze points 44. This also prevents the possibility of radial outward movement of the lock element 40 which must first be accomplished before there can be rotation of the cap 28 in an opening direction.
The ramps 60 are disposed above the lock members 26 and are disposed in diametrically opposed relationship to each other. There is no specific relative positioning of the ramps 60 relative to the lock member 26 in a circumferential direction. However, the preferred location of the squeeze points 44 is approximately 90 degrees from the lock elements 40 so that when a pair of lock elements 40 are used, squeezing occurs midway therebetween. That being the case, the location of the ramps 60 preferably is in radial alignment with the lock elements 40 as shown in FIGS. 3 and 4. Under such conditions, the lock elements 40 are located approximately 90 degrees from the lock surfaces 42 on the lock members 26. The circumferential extent of the tab element 50 must be such that it extends from the lock element 40 to one of the lock surfaces 42 when the squeeze points 44 are in alignment with the ramp 60.
To bring about opening movement of the package 8, the grip portion 56 is held between the thumb and forefinger and the tab element 50 is broken away along the lines of weakening 52 and 54 to separate the tab element 50 from the cap 28. Thereafter, the cap 28 can be rotated in an opening direction through an arc of approximately 90 degrees until the lock element 40 engages the lock surface 42 on the lock member 26. In such a position, the squeeze points 44 will have been moved out of radial alignment with the ramp 60 as illustrated in FIG. 4. In that condition, the squeeze points 44 can be pressed toward each other which causes the lock elements 40 to move radially outwardly to the broken line position illustrated in FIG. 4 to permit subsequent turning movement in an opening direction which in FIG. 4 is counterclockwise. By simultaneous holding the squeeze points 44 to maintain the lock elements 40 radially outward, the cap 28 can be unthreaded from the closure.
Although the child resistant and tamper indicating package can be made to operate properly with a single lock member 26 and lock element 40, it is preferable to use a pair of diametrically opposed lock members 26 and a pair of diametrically opposed lock elements.
When the closure 10 is applied to a container for the first time, the cam surfaces 46 serve to move not only the lock elements 40 radially outwardly but also the tab element 50 forming a part of the tamper indicating means 16.
The tamper indicating package has been provided in which a threaded cap is applied to the threaded neck of a container and in which a tamper indicating means prevents opening movement until it is removed with such removal indicating that at the very least, the package has been placed in condition for opening thereby indicating the possibility of tampering with the contents in the container.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US4413743 *||Nov 10, 1982||Nov 8, 1983||Rieke Corporation||Child-resistant safety closure|
|US4456136 *||Jun 21, 1983||Jun 26, 1984||Palsson Johannes Saemundur||Safety closure|
|US4471878 *||Jun 28, 1983||Sep 18, 1984||Johnsen & Jorgensen (Plastics) Ltd.||Child and tamper resistant closure|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4752013 *||Nov 27, 1987||Jun 21, 1988||Miller Jack V||Tamper-evident child-resistant cap and bottle with axial locking means|
|US4778069 *||Nov 4, 1987||Oct 18, 1988||Cpc Interational Inc.||Tamper indicating package|
|US4925063 *||Dec 1, 1988||May 15, 1990||Athar Mohammad Ali||Container having a dual purpose cap and a dripless spout|
|US5082129 *||Dec 17, 1990||Jan 21, 1992||Medcor, Inc.||Snap-lock for screw-cap container|
|US5310074 *||Jun 25, 1993||May 10, 1994||Berry Plastics Corporation||Canister with lid-release control mechanism|
|US5462182 *||Jan 27, 1994||Oct 31, 1995||Weatherchem Corporation||Screws-on child resistant consumer-friendly closure|
|US5549389 *||Mar 2, 1994||Aug 27, 1996||Sumitomo Bakelite Company, Limited||Outlet stopper for pouch-type fluid containers|
|US5660289 *||Apr 11, 1995||Aug 26, 1997||Alcoa Deutschland Gmbh||Plastic cap for containers|
|US5706963 *||Aug 13, 1996||Jan 13, 1998||Gargione; Frank V.||Child resistant closure|
|US5794803 *||Nov 1, 1996||Aug 18, 1998||Rexam Closures, Inc.||Child-resistant measuring cup closure and dispensing container|
|US5862953 *||Jul 24, 1996||Jan 26, 1999||International Plastics And Equipment Corporation||Tamper evident push-pull closure with pour spout|
|US5964139 *||Sep 15, 1997||Oct 12, 1999||Alcoa Deutschland Gmbh||Apparatas for producing container cap|
|US6073809 *||Nov 15, 1996||Jun 13, 2000||International Plastics And Equipment Corporation||Snap-on tamper evident closure with push-pull pour spout|
|US6561370 *||Oct 10, 2000||May 13, 2003||Escobar-Harrity Miguel Francis||Container cap with double function ring|
|US6698605 *||May 21, 2001||Mar 2, 2004||Rexam Medical Packaging Inc.||Modified bottle neck for use with child resistant caps|
|US6871752 *||Feb 4, 2002||Mar 29, 2005||Rexam Medical Packaging Inc.||Rotary seal for clousure with on-stop|
|US6983859 *||Nov 5, 2002||Jan 10, 2006||U.S. Can Company||Child proof and tamper evident container|
|US7228979||Jun 16, 2004||Jun 12, 2007||International Plastics And Equipment Corp.||Snap-on screw-off closure with retaining member for tamper-indicating band|
|US7604139 *||Apr 13, 2005||Oct 20, 2009||International Plastics And Equipment Corporation||Resealable, tamper evident closure|
|US8424705 *||Sep 1, 2009||Apr 23, 2013||Dwyer Instruments, Inc.||Gage cover retention mechanism|
|US8528759 *||Jan 17, 2007||Sep 10, 2013||Sacmi Cooperativa Meccanici Imola Societa' Cooperativa||Closure means|
|US8568074 *||May 27, 2010||Oct 29, 2013||Draeger Safety Uk Limited||Two-part device|
|US20030085227 *||Nov 5, 2002||May 8, 2003||Azzarello Francis T||Child proof and tamper evident container|
|US20030146183 *||Feb 4, 2002||Aug 7, 2003||Rexam Medical Packaging Inc.||Rotary seal for closure with on-stop|
|US20070210027 *||Oct 8, 2004||Sep 13, 2007||Abbott Douglas A||Child-Resistant Package|
|US20090057260 *||Aug 27, 2007||Mar 5, 2009||Sunil Mohindra||Tamper-Evident Container|
|US20090084751 *||Jan 17, 2007||Apr 2, 2009||Sacmi Cooperativa Meccanicimola Imola Societa' Cooperativa||Closure means|
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|US20110064537 *||May 27, 2010||Mar 17, 2011||Draeger Safety Uk Limited||Two-Part Device|
|US20160244196 *||Feb 18, 2016||Aug 25, 2016||Henkel Ag & Co. Kgaa||Bottle and a corresponding bottle cap|
|EP0395465A1 *||Apr 9, 1990||Oct 31, 1990||Plastohm S.A.||Screw cap with tamper evident ring for a jar or the like|
|EP0475854A1 *||Jul 23, 1991||Mar 18, 1992||Cebal||Container and screw cap having a tamper indicating band|
|WO2005037659A2 *||Oct 8, 2004||Apr 28, 2005||Pechiney Plastic Packaging Inc.||Child-resistant package|
|WO2005037659A3 *||Oct 8, 2004||Oct 13, 2005||Douglas A Abbott||Child-resistant package|
|WO2016128431A1 *||Feb 10, 2016||Aug 18, 2016||Sanner Gmbh||Container with childproof lock|
|U.S. Classification||215/216, 215/254, 215/253|
|International Classification||B65D50/04, B65D41/34|
|Cooperative Classification||B65D2101/0038, B65D50/046, B65D41/3409, B65D41/3404, B65D2101/0053|
|European Classification||B65D41/34A1, B65D50/04F2, B65D41/34A|
|Sep 28, 1984||AS||Assignment|
Owner name: SUNBEAM PLASTICS CORPORATION 3245 KANSAS ROAD, EVA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:LUKER, EDWARD;REEL/FRAME:004320/0643
Effective date: 19840912
|Oct 6, 1988||FPAY||Fee payment|
Year of fee payment: 4
|Sep 12, 1993||LAPS||Lapse for failure to pay maintenance fees|
|Nov 30, 1993||FP||Expired due to failure to pay maintenance fee|
Effective date: 19930912